CVE-2019-20399

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CVSS 3.1

5.9 medium

EPSS

<1%p57

Published

Jan 23, 2020 (Jan 23, 2020)

Modified

Jun 17, 2026

Description

A timing vulnerability in the Scalar::check_overflow function in Parity libsecp256k1-rs before 0.3.1 potentially allows an attacker to leak information via a side-channel attack.

Vendors: parity
Products: libsecp256k1
Weakness: CWE-203
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.9%)

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